[git pull] vfs.git 9p fix

[Al Viro]

The following changes since commit f2906aa863381afb0015a9eb7fefad885d4e5a56:

  Linux 5.19-rc1 (2022-06-05 17:18:54 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git tags/pull-work.9p

for you to fetch changes up to f615625a44c4e641460acf74c91cedfaeab0dd28:

  9p: handling Rerror without copy_from_iter_full() (2022-06-09 10:01:34 -0400)

----------------------------------------------------------------
	net/9p abuses iov_iter primitives - attempts to copy _from_
a destination-only iov_iter when it handles Rerror arriving in reply to
zero-copy request.  Not hard to fix, fortunately; it's a prereq for the
iov_iter_get_pages() work in the second part of iov_iter series,
ended up in a separate branch.

Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>

----------------------------------------------------------------
Al Viro (1):
      9p: handling Rerror without copy_from_iter_full()

 net/9p/client.c       | 86 +--------------------------------------------------
 net/9p/trans_virtio.c | 34 ++++++++++++++++++++
 2 files changed, 35 insertions(+), 85 deletions(-)